2011年9月21日下午,陕西省榆林市横山县“波罗矿井区”。在昏黄的夕照下,一片空旷的荒地上,没了顶的简易房与丛生的野草,和漫无边际的沙丘相伴,显得冷清而凄凉。两眼黑洞洞的矿井前不远处,一堆煤炭散乱地躺在那里。这意味着这片贫瘠的不毛之地下面藏着价值数以亿计的黑色金子,这正是这场矿 September 21, 2011 afternoon, Yulin, Yulin, Shaanxi Province “Polo mine area ”. In the dim sunset, an empty wasteland, not the top of the simple room with clusters of weeds, accompanied by the endless sand dunes, deserted and desolate. Not long ago, two dark holes in the mine, lying in a pile of coal scattered. This means that hundreds of millions of black gold are hidden beneath the barren barren land, which is exactly what this mine